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Date:      Fri, 06 May 2016 02:54:27 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 209312] sound recording on VIA VT1708S with snd_hda exhibits much noise
Message-ID:  <bug-209312-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209312

            Bug ID: 209312
           Summary: sound recording on VIA VT1708S with snd_hda exhibits
                    much noise
           Product: Base System
           Version: 10.2-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: misc
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: gja822@narod.ru

I have ASUS M5A78L-M UB3 motherboard with integrated VIA VT1708S audio code=
c.

It works with snd_hda (with some tweaks in device.hints nids, currently I l=
eft
only Rear Line-in/tried also as Microphone/ and Line-out as pcm2 and separa=
tely
Front Headphones as pcm3; [pcm0 is Envy24 (M Audio Audiopile 2496) that is
useless for recording audio also, and pcm1 is motherboard chipset's ATI
RS690/780HDMI output, which I haven't opportunity to use]).

After mentioned small tweaks in device.hints, I can listen to sounds via the
VIA's codec. But recording from microphone is almost useless. There's too m=
uch
noise (with main harmonic at 8kHz), even sound is going _out_ of my dynamic
microphone when I switch it on. I can flawlessly record on the same board w=
ith
help of Windows OS [either from VIA-VT1708S or Envy27], but I found out no
possibility to do that from FreeBSD.

uname: FreeBSD 10.3-STABLE #0 r298933M
(but the same was for all previously used builds of 10)

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